This afternoon, the students took part in a demonstration of science that dealt with the viscosity and dissolvability qualities of liquids. Students were supplied with a plastic see-thru cup, water, food coloring, vegetable oil and salt. First, the students added two tothree drops of food coloring to their water. Then, they added some oil and floated it on top in a layer about a quarter of an inch thick. They then added salt in various amounts and watched what happened. They thought it was cool. The salt would catch the oil as it sunk down into the water. Then, as the salt hit the water, it would dissolve and release the oil back up to the top, looking like the bubbles of a lava lamp. We then did the project on a larger scale using a large glass vase instead of the individual cups. It was awesome.
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